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Official data from INPI

CONSTRUÇÃO DE FECHAMENTO DE RECIPIENTE.

ConcedidaInvention Patent

Application data

Number

PI8401330

Type

Invention Patent

Filing

03/20/1984

Publication

10/30/1984

Progress at the INPI

  1. Filing03/20/84
  2. Publication10/30/84
  3. Examination02/20/85
  4. Allowance06/21/88
  5. Grant03/28/89
  6. Expired07/08/08

The letters patent expired on 07/08/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 03/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

American Flange & Manufacturing Co. Inc.

US

Inventors

D. D. (pessoa física)

US

J. L. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

476.999 · 03/21/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/28/1989

RPI 962

Notificação para pagamento de retribuição

#13.1

10/25/1988

RPI 940

Deferimento

#9.1

06/21/1988

RPI 922

6.2

09/22/1987

RPI 883

Solicitação de exame técnico

#4.1

02/20/1985

RPI 748

Publicação do pedido de patente

#3.1

10/30/1984

RPI 732

Pedido de patente depositado

#2.1

06/12/1984

RPI 712

Carta-patente expirada

#21.1

Patente extinta em 20/03/99

07/08/2008

RPI 1957

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